package com.tanhua.dubbo.api;

import com.tanhua.dubbo.utils.IdWorker;
import com.tanhua.model.mongo.Video;
import com.tanhua.model.vo.PageResult;
import org.apache.dubbo.config.annotation.DubboService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Sort;
import org.springframework.data.mongodb.core.MongoTemplate;
import org.springframework.data.mongodb.core.query.Criteria;
import org.springframework.data.mongodb.core.query.Query;

import java.util.List;

@DubboService
public class VideoApiImpl implements VideoApi {
    @Autowired
    private MongoTemplate mongoTemplate;

    @Autowired
    //工具类 id唯一,自动增长
    private IdWorker idWorker;

    @Override
    public String save(Video video) {
        //1.设置属性
        video.setVid(idWorker.getNextId("video"));
        video.setCreated(System.currentTimeMillis());

        //2.调用方法保存对象，到mongodb
        mongoTemplate.save(video);

        //3.返回一个对象id
        return video.getId().toHexString();
    }

    //根据vid查询数据列表
    @Override
    public List<Video> findMovmentsByVids(List<Long> vids) {
        Query query = Query.query(Criteria.where("vid").in(vids));
        return mongoTemplate.find(query, Video.class);
    }

    //分页查询数据列表
    @Override
    public List<Video> queryVideoList(int page, Integer pagesize) {
        Query query = new Query().limit(pagesize).skip((page - 1) * pagesize)
                .with(Sort.by(Sort.Order.desc("created")));
        return mongoTemplate.find(query, Video.class);
    }


    //根据用户id查询视频列表
    @Override
    public PageResult findByUserId(Integer page, Integer pagesize, Long userId) {
        //通过userid查询,封装了查询条件
        Query query = new Query(Criteria.where("userId").in(userId));
        //查询总数
        long count = mongoTemplate.count(query, Video.class);
        //分页查询条件
        query.limit(pagesize).skip((page - 1) * pagesize)
                .with(Sort.by(Sort.Order.desc("created")));

        List<Video> list = mongoTemplate.find(query, Video.class);

        return new PageResult(page,pagesize,count,list);
    }
}
